COMPORTAMENTO TÉRMICO, MECÂNICO E MORFOLÓGICO DO COMPÓ-SITO DE POLIPROPILENO E PÓ DE MADEIRA ACETILADA POR ANIDRIDO ACÉTICO E ÁCIDO ACÉTICO

Detalhes bibliográficos
Ano de defesa: 2016
Autor(a) principal: Stasievski, Gisele lattes
Orientador(a): Pinheiro, Luis Antonio lattes
Banca de defesa: Carvalho, Benjamim de Melo lattes, Almeida, Denise Milléo lattes
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: UNIVERSIDADE ESTADUAL DE PONTA GROSSA
Programa de Pós-Graduação: Programa de Pós-Graduação em Engenharia e Ciências de Materiais
Departamento: Desenvolvimento e Caracterização de Materiais
País: BR
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: http://tede2.uepg.br/jspui/handle/prefix/1484
Resumo: The composites with wood load have been gaining space among the materials of this class because their good mechanical properties, dimensional stability, low cost, and contribute for the environmental factor. For a good adhesion of wood particles in polymeric matrix, a compatibility process are required, because wood have polar characteristic meanwhile polymers have a-polar groups. The process used in this study is a chemical treatment by acetylation, where the purpose is to reduce the polarity of wood and ensure strong adhesion between components. A mixture of equal proportions of acetic acid and acetic anhydride catalyzed by sul-furic acid are the reagents of the pine wood acetylation. The treated wood was processed with polypropylene and infrared spectroscopy was used to analyze composite effective chemical modification. The thermal and mechanical proper-ties were compared to virgin polymer and adhesion between fiber-matrix was ver-ified by microscopic analysis.